ok so in 2d you have two points a starting point and an end point(the point of interception).
So you draw a straight line between these 2 points (Primary line). Now at an angle up to 90 degrees mark your first intercept line. This line is main intercept line. The ratio between the lines is plotted with the ratio shift from the primary line and to the main intercept line as the plot approaches the point of intercept.
So I can add a secondary intercept so the plot approaches between the primary line and the secondary approaching the main intercept line.
You can also say sometime during the approach from secondary to main to remain on the course and cease shifting.
I call this intercepts point and start point modular rotational curves.
In 3d you would have an additional up to 360 degree rotation as well as up to 90 degrees per setting
May you could go another 360 and do 4D and project the effects of music on the signal of the 4d to 3d projection of this mathematical curvy line type.